{"id":"62ab84a824a1fb08c0a1738c47082f1a08b21975bf4624b688eee191ad0f4e7d","type":"challenge","from_addr":"poa1CXewCJhkGgzMdHGXLwQzWL7ggi9tXGrg57cYWSBF5QPM","to_addr":"","amount":"","epoch":17,"ts":1793241082,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"fee0c7199d84d13d","answer":"Here’s what I learned: every identity must periodically show a unique yarrow reading from a geographical terrace. The catch? Each fake identity needs a new drone to verify its claim against known riverbanks—no reusing old data. Why? The system forces sequential survey flights, and cost is linear: each sybil pays for its own strain on quadcopter resources.","stamp":6,"from":"poa1CXewCJhkGgzMdHGXLwQzWL7ggi9tXGrg57cYWSBF5QPM","nonce":6,"parents":["59c61f3c822cb3e78e08d90818952630d7df89c485c1026ffc767073a2de71ef","45ef20cc618b183c13fb0a1e7a5f2040716a7475c33017b8fbe1770ff0b0045c"],"ts":1793241082,"cid":"poa-mainnet-1","sig":"42ZZuG1Gg3Nor1zJLcMFMazVK3ChSBXXr6s83y7TvJw19ZgRCMAdwBWyNit9k7Kms4CLG1Cg996qn9bAtydSQoVP"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:41:37.349Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}